Retort for the manufacture of illuminating-gas.



s. W! RETGRT FOB. THE MANUFAGTURE U LLUfNATNG GAS. APPLICATION FILEDEB.2G 1909,

2 SHEETS-SHEET 1.

G. W. ISBELL, RETORT ma THE MANUFAGTURE 0F ILLUMNATmG GA APPLIOATIONFILEDl PEB. 26, 1909.

2 SHEETS-SHEET 2.

i@ t Fri rm, im @new t .en nllililfd il, Ulli itl i CHARLES W. SBELL, 0FNEW YORK, ii.

@muy i Original appiieeton filed December :2, i908, Serial 1\Io.465,602.Divided and this application file February Specification of LettersPatent.

-JL 'a Pstenteel "i9 iii@ 26, 1909. Serial No. 489.132.

- eitizen ot' the llnited States, and resident of the borough otManhattan, in the eity und State oi' New "York, have invented a new anduseful lniprtwenient in Retorts for the ).lanuineture ofilluminating-Gas, of which the 'following is a speeifieation.

This` invention eonsists in Certain i1nprovenienteI in the'eonstruction,Y forni und :irrangenientl ot' the several parts ot' unnprip'lit ons retort used tor the manufacture of illuininniing gas 'frombituminousl coal, the retort being` oi' that elass in which there is :ie-onlinuou` earbonizat'ion ina eoinpletely Jr'ull retort', with n Waterseul zit the bottom o'l1 the. retort.

This invention particularly eonsists in eert'nin improvements in theConstruction of the retort itself nf'hel'eby a step by Step enlargementot they urea of the retort from the tol) to the bottoni.thereof isprovided for aeeoniplishing the purpose o1 forming' an annulnr t'ree onsspin-e under euch step At'roin whit-h space one or inore branch 'fineslead into one or more inain Auns fines in the retort. This step by stepenlargement also nlloivsl a sudden expansion of the cool it intervalsyas it passes down through the retort inst' `.ad o'l the gradual-expansion oil t ie coal' as is usual.

.t practical enibodinient of my invention is represented in theueeoinpanying drawings, whirl: show u bank ot tour retorts, it beingunderstood that the nuniber of retorts muy be varied to nuilfdi tierentrequirements.

Figure l is a vertical section taken in the plnnes of the. linesI ofFig'. 2, lookingin the direction of the arrows; Figf is a horizontalset-tion tal-:en in the pinne of the line lfzl') ot Fig. l. lookingl inthe direction ol the. arrows; Fig'. :i is a transverse section taken inthe pianeo'lf the line C--tl of Fig'. 9., looking' iu the, direction ofthe arrows; Fig. fi is u plan view of one ot the retort seetions, nudltig. 5 is a seelion taken in 'the planes ot' the line ll--D oi" Fie'.i., looking in the, di-

reetion oi` the, arrows,.a portion oi? the nentl :nl ioiningr retortseetion being shown in longitudinal vertieul ventral section. f

The tour vertieal retorts l, 2. 3i, 4, :ire nrrane'ed in tivo parallelrows within the Coinbuslion elnnnber 5j. through which ehnlnber, betweenand around the. said retorts, the 'produets ol' ".oinl'iustion 'from thefurnace (i ported by said tioor plate sind by 'tbs strueture of masonrywhich includes the turnaee Beneath. the Hoor plate l?, l provide ieasing 90 into the interior of which project the dip pipes 21 whichforni downward eX.- tensions ot the retorts l, 2, 3, 4. rihis easingbasan upwzirdlyinelined outlet 22 'for the eoke and is further providedwith a double inclined main bottoni 23 and n false bottoni 2l. The spacebetween the main bottom and the false bot-toni Q4 is adapted to re`eeive the tur, und n suitable pipe 525 is provided for removing the tar.Yft/'atei' is introduced into this Casing i2() to a pointslighl'ly abovethe lon/er ends of .the dip vpipes 21, so as to vtorni a wnterisenl forthe saine, the spare between the Waiter level and the lioor plate 1K7,forming a ohnmber. A system of pipinga 2i' lends from the desired point.

on shafts 22) belmv the bottoms ot the severalv retort's. which supportsalso serve to agitizit-e the Coke at. the. bottoms oi the retorts andonus@ the same to be deposited yon to the aise' bottoni oi` the easing'.rlhe two shafts 29 muy b e rotated at the desired speed from anysuitable. source of power, not shown herein. Suitable means, not shownherein,- are provided 'tor feeding' the coni e0ntinuonsly into the topsot' the several retorts.

The eoke is reinoved little by litt-le up Wardly through the inelinedoutlet, 22, by means of a ruin 3() reeiproent-ing on the false botton21%, Whieh rain lis driven by s, suitz'ible engine 3l. f

Each of the retorts inerenees in ares step by step from the top to thebottom thereof, so as to serve the double purpose of permit torvalsduring its downward movement. and also of providing ons .spaces underthe able Columns 19 and the retorts are sup-- gas chalutier' 2G forconveying` the ne to {iny- Revolving supports 28 are tixedly mountedting a sudden expansion ot the. @oei ut in.-v

vided with one'or more main vertical gas fines; in the present instancetwo of these gas dues 32 are provided, the lower ends of which' arelopen through the floor plate 17 andilining 18 into the gas chamber 26and the upperend's of which iues are provided with suitable plugs'33through which steam may be admitted for preventing the over heating and,consequent decomposition of the gas asitpasses down int-o the gaschamber. Diagonal gas tlues 34 lead upwardly :trom the steps in theinterior of the retort, into the main gas iues 32, thus aiording anoutlet for the gas whichcollects in the spaces beneath the said steps.This gas passes downwardly through these tlues 32 into the gas chamber26. The rest of the gas passes downwardly through the, water seal at thebottoni of the retort and bubbles upwardly into the said. gas chamber26.

qWhere the retorts are arranged in parallel series as shown in theaccompanying drawings, the two retorts 1 and 3 nearest to theI furnace,are connected to the furnace Wall and are also connected to the next twore- 'torts 2 and 4, so that. the productsof conlbustion as they passfrom the furnace 6 through the iue 7, have to first-pass between theadjacent walls of the retorts and from thence to the chimney branchfiues 9, 10, along the outer walls of the said retorts, thus insuringthe utilization of the products of combustion to the best advantage.Furthermore, the secondary air which is/introduced through the openings14, 15,\16, is introduced at the enlarged spaces in the combustionchamber where the secondary air may be readily mixed with the productsof combustion from the furnace to produce the greatestheat at thedesired points. Another great advantage of introducing the secondary airdirectly into the combustion chamber instead of into the furnace iue, isthat, the greatest heat of the products of combustion is insured withinthe combustion chamber and not within the furnace tine where thetendency has been to heat the Walls of the furnace tine to a meltingpoint.

The parts of the apparatus shown and described but not claimed hereinform the subject mattei of an application tiled by me the. second day ofDecember, 1908, its

' serial number being 465,602, of which applr cation this presentapplication is a division.

What I claim is 1. In an apparatus of the character described, a hretorthaving its interior enlarged in steps from the top to the bottom thereofto form gas spaces under-'the steps, said rctort having a main gas Iiuetherein and branch flues leading from said gas spa-ces into said maingas flue.

2. In an apparatus of the character described, a retort having itsinterior enlarged in steps from the top to the bottom ythereof to formgas spaces under the steps, said rctort having a plurality of main duestherein and branch titles. leading from the said gas spaces into thesaid main gas fines.

3. In an apparatus of the character described, a retort composed ofsections, the bores of which increase in the top to the bottom ofthtietort to form a step by step enlargement of the interior of theretort whereby gas spaces are formed vunder. the said steps, said retorthaving a branch iues leading from the said gas spaces into the said maingas fines.

' In testimony, that I claim the foregoing as my invention, I havesigned my name 1n diameter' from presence ot two witn esses, thistwentieth day ot' February 1909.

` CHARLES W. ISBELL. Witnesses:

E GEORGE BARRY, Cl S. SUNDGREN.

